SOLUTION: Luis and Julia have the same number of coins. Luis has only dimes and Julia has only quaters. If Julia has $1.80 more than Luis does, how many coins do each have ?

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Question 366373: Luis and Julia have the same number of coins. Luis has only dimes and Julia has only quaters. If Julia has $1.80 more than Luis does, how many coins do each have ?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
q+=+d
25q+-+10d+=+180 (in cents)
By substitution:
25q+-+10q+=+180
15q+=+180
q+=+12
d+=+12
Each has 12 coins